johny@xxxxxxxxxxxxxx writes:
> i want to ask, why free function did not do properly as it expected
> (happened in test_malloc.c), the usage memory (using malloc) still exist
> please help me, i have another program it, doing malloc continously, and
> free it when not needed, this happened several times,
> after some looping, my memory become 0 free, and it got hang.i did some
> investigation, and found there is something strange in free.
>
> anyone got idea what happen and give me a solution?
I get the same results. It's correct as far as I can see: in this
case malloc doesn't return the pages to the OS, and neither should it.
Finding and recycling pages is expensive and unneceesary.
But malloc does re-use the memory after free. Change the defintion of
dodol to prove it:
typedef struct _dodol
{
char abc[10000];
} dodol;
Andrew.
